Sarah F. Griffee, M.A.
Areas of Expertise
Coastal GIS Analyses
Regional Geomorphic Change in Wetland Environments
Spatial and 3D Analyses
Education
2005 M.A., GIS and Environmental Remote Sensing, Boston University
2000 B.S., Geology, University of Vermont
Project Experience
Shoreline Compilation and Change Assessment for Open-Coast Shorelines of South Louisiana
As part of the Louisiana Barrier Island Comprehensive Monitoring (BICM) Program, historical shoreline positions between the 1850s and 2012 were compiled for quantifying shoreline change. Ms. Griffee employed GIS techniques for evaluating existing data and creating new datasets, including georeferencing and digitizing historical USC&GS T-sheets, interpreting and digitizing shorelines from orthoimagery, and utilizing shoreline change analysis software to quantify changes between different time periods. These data are being used to aid in the planning, design, evaluation, and maintenance of current and future barrier island/coastal restoration projects.
Massachusetts Coastal Zone Management, Coastal Hazards Atlas for the South Coast of Massachusetts
Ms. Griffee completed the GIS analysis used to develop the South Coast Coastal Hazards Atlas. The South Coast atlas strives to bridge the gap between sound science and policy, delivering a wealth of relevant coastal data in an easily understandable format. Shoreline change, evaluation of littoral cells, wave climate and dominant coastal processes for each cell were determined. Additional risk factors were also defined and evaluated, including storm surge elevations, changing sea level and an index for assessing the stability of coastal bluffs in the region.
Sediment Transport Pathways, Inlet and Island Migration, and Detailed Sediment Budgets for the Mississippi Coastal Improvements Program
Historical shoreline and bathymetry surveys of Mississippi Sound and offshore environs were captured and analyzed using spatial analysis software under ArcGIS to document the evolution of beach, nearshore, and channel environments most directly influenced by hurricanes and other storms. Net sediment transport pathways and magnitudes were determined based on change patterns to quantify regional sediment dynamics and evaluate historical sediment budgets for use in planning and design of restoration efforts for the Mississippi Sound barrier islands.
Evaluation of Channel Dredging on Shoreline Response at and Adjacent to Mobile Pass, Alabama
Ms. Griffee compiled shoreline and bathymetry data using ArcGIS to evaluate the potential impact of channel dredging across the Mobile Pass Outer Bar Channel on erosion processes along Dauphin Island, and on the ebb-tidal delta west of the navigation channel. Major changes in island configuration west of Pelican Island and shoal development on the ebb-tidal delta were always associated with hurricanes or tropical storms. Bathymetric changes indicated consistent deposition for the entire ebb-tidal delta prior to and after channel dredging, except for two periods where the end dates were close to major storms.
Selected Publications
Byrnes, M.R., J.L. Berlinghoff, S.F. Griffee, A.R. Fallon, and D.M. Lee, 2018. Louisiana Barrier Island Comprehensive Monitoring Program (BICM): Phase 2 – Updated Shoreline Compilation and Change Assessment, 1880s to 2015. Prepared for Louisiana Coastal Protection and Restoration Authority (CPRA) by Applied Coastal Research and Engineering, Baton Rouge, LA and Mashpee, MA, in cooperation with CDM Smith, Baton Rouge, LA, 46 p. plus appendices.
Byrnes, M.R.; Rosati, J.D.; Griffee, S.F., and Berlinghoff, J.L., 2013. Historical Sediment Transport Pathways and Quantities for Determining an Operational Sediment Budget: Mississippi Sound Barrier Islands. In: Brock, J.C., Williams, S.J., and Barras, J. (eds.), Understanding and Predicting change in Coastal Ecosystems of the Northern Gulf of Mexico, Journal of Coastal Research, Special Issue, No. 63. West Palm Beach (Florida), ISSN 0749-0208, pp. 166-183.
Byrnes, M.R.; Berlinghoff, J.L., and Griffee, S.F., 2013. Sediment Dynamics in Mobile Bay, Alabama: Development of an Operational Sediment Budget. Mobile, Alabama: Technical Report to the Mobile Bay National Estuary Program, 134 p.
Byrnes, M.R.; Rosati, J.D.; Griffee, S.F., and Berlinghoff, J.L., 2012. Littoral Sediment Budget for the Mississippi Sound Barrier Islands. Vicksburg, Mississippi: U.S. Army Engineering Research and Development Center, Technical Report ERDC/CHL TR-12-9, 171p.